WASHINGTON (MEDIA GENERAL) – Four U.S. senators are fighting back against unconfirmed, anonymous accusations that they’re affiliated with the Ku Klux Klan.

Internet hacktivist group Anonymous announced an event called “HoodsOff2015,” according to The Hill, with a promise of exposing members and affiliates of the KKK.

On Monday, several prominent lawmakers – including mayors and United States senators – fiercely denied any purported link between themselves and the white supremacy group, as found in the Anonymous-related documents.

According to media reports, Sens. Dan Coats (R-Ind.), John Cornyn (R-Tex.), Johnny Isakson (R-Ga.), and Thom Tillis (R-N.C.) were all named in the data dump.

The Senate’s second highest-ranking member, Republican Whip John Cornyn of Texas, refuted the very foundation of the accusations, pointing out several apparent holes in the claims. Cornyn’s spokesman wrote:

The claim, made by one individual who will not identify themselves or provide any facts to back up their assertion, is completely false, and to continue to perpetuate it is reckless and unconscionable… None of these emails or phone numbers are associated with Sen. Cornyn, and many of the phone numbers can be traced to publically available phone numbers, like (877) 336-7200, which is the number of contact for the Democratic National Committee.

Sen. Isakson of Georgia’s press secretary, Amanda Maddox, pushed back in no uncertain terms, writing, “This information is absolutely false and comes from an unverified source. Senator Isakson has neverbeen affiliated with the KKK.”

His office is also threatening legal action against anyone who is claiming he is a KKK member.

North Carolina Sen. Thom Tillis’s spokesman wholly dismissed the allegation with a single sentence: “The claim is ridiculous and completely false.”

Two well-known mayors were also dragged into the KKK controversy Monday, swiftly swatting down any notion that they’ve ever been connected to the racial hate group.

Mayor Madeline Rogero of Knoxville, Tenn., responded, “Don’t be ridiculous … I have spent decades working for causes of social justice and equality.” WATE-TV published Rogero’s statement in full.